CI: test Kubernetes port forwarder

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>

Author: AkihiroSuda

.github/workflows/test.yml

@@ -296,6 +296,7 @@ jobs:
         - archlinux.yaml
         - opensuse.yaml
         - docker.yaml
+        - k8s.yaml
         - ../hack/test-templates/alpine-iso-9p-writable.yaml  # Covers alpine-iso.yaml
         - ../hack/test-templates/net-user-v2.yaml
         - ../hack/test-templates/test-misc.yaml  # TODO: merge net-user-v2 into test-misc

hack/test-templates.sh

@@ -44,6 +44,7 @@ declare -A CHECKS=(
 	["systemd-strict"]="1"
 	["mount-home"]="1"
 	["container-engine"]="1"
+	["k8s"]=""
 	["restart"]="1"
 	# snapshot tests are too flaky (especially with archlinux)
 	["snapshot-online"]=""
@@ -76,9 +77,11 @@ case "$NAME" in
 	CHECKS["container-engine"]=
 	[ "$NAME" = "alpine-iso-9p-writable" ] && CHECKS["mount-path-with-spaces"]="1"
 	;;
-"k3s")
-	ERROR "File \"$FILE\" is not testable with this script"
-	exit 1
+"k0s" | "k3s" | "k8s")
+	# Disable all checks except k8s
+	CHECKS=(
+		["k8s"]="1"
+	)
 	;;
 "fedora")
 	WARNING "Relaxing systemd tests for fedora (For avoiding CI failure)"
@@ -431,6 +434,18 @@ if [[ -n ${CHECKS["container-engine"]} ]]; then
 	fi
 fi
 
+if [[ -n ${CHECKS["k8s"]} ]]; then
+	INFO "Testing Kubernetes"
+	set -x
+	limactl shell "$NAME" kubectl get nodes -o wide
+	limactl shell "$NAME" kubectl create deployment nginx --image="${nginx_image}"
+	limactl shell "$NAME" kubectl create service nodeport nginx --node-port=31080 --tcp=80:80
+	timeout 3m bash -euxc "until curl -f --retry 30 --retry-connrefused http://127.0.0.1:31080; do sleep 3; done"
+	limactl shell "$NAME" kubectl delete service nginx
+	limactl shell "$NAME" kubectl delete deployment nginx
+	set +x
+fi
+
 if [[ -n ${CHECKS["port-forwards"]} ]]; then
 	INFO "Testing port forwarding rules using netcat"
 	set -x

templates/README.md

@@ -57,7 +57,7 @@ Container orchestration:
 - [`faasd`](./faasd.yaml): [Faasd](https://docs.openfaas.com/deployment/edge/)
 - [`k0s`](./k0s.yaml): [k0s](https://k0sproject.io/) Zero Friction Kubernetes
 - [`k3s`](./k3s.yaml): Kubernetes via k3s
-- [`k8s`](./k8s.yaml): Kubernetes via kubeadm
+- [`k8s`](./k8s.yaml): ⭐Kubernetes via kubeadm
 - [`experimental/u7s`](./experimental/u7s.yaml): [Usernetes](https://github.com/rootless-containers/usernetes): Rootless Kubernetes
 
 Optional feature enablers: